434408129 has 2 divisors, whose sum is σ = 434408130. Its totient is φ = 434408128.

The previous prime is 434408111. The next prime is 434408131. The reversal of 434408129 is 921804434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 385729600 + 48678529 = 19640^2 + 6977^2 .

It is a cyclic number.

It is not a de Polignac number, because 434408129 - 2²⁸ = 165972673 is a prime.

Together with 434408131, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434408179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217204064 + 217204065.

It is an arithmetic number, because the mean of its divisors is an integer number (217204065).

Almost surely, 2^434408129 is an apocalyptic number.

It is an amenable number.

434408129 is a deficient number, since it is larger than the sum of its proper divisors (1).

434408129 is an equidigital number, since it uses as much as digits as its factorization.

434408129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 434408129 is about 20842.4597636651. The cubic root of 434408129 is about 757.3546818657.

The spelling of 434408129 in words is "four hundred thirty-four million, four hundred eight thousand, one hundred twenty-nine".